195005197 has 2 divisors, whose sum is σ = 195005198. Its totient is φ = 195005196.

The previous prime is 195005191. The next prime is 195005203. The reversal of 195005197 is 791500591.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (195005191) and next prime (195005203).

It can be written as a sum of positive squares in only one way, i.e., 181010116 + 13995081 = 13454^2 + 3741^2 .

It is a cyclic number.

It is not a de Polignac number, because 195005197 - 2¹⁵ = 194972429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195005191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97502598 + 97502599.

It is an arithmetic number, because the mean of its divisors is an integer number (97502599).

Almost surely, 2^195005197 is an apocalyptic number.

It is an amenable number.

195005197 is a deficient number, since it is larger than the sum of its proper divisors (1).

195005197 is an equidigital number, since it uses as much as digits as its factorization.

195005197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14175, while the sum is 37.

The square root of 195005197 is about 13964.4261249791. The cubic root of 195005197 is about 579.8941513142.

The spelling of 195005197 in words is "one hundred ninety-five million, five thousand, one hundred ninety-seven".